A plant genus in the family PINACEAE, order Pinales, class Pinopsida, division Coniferophyta. They are coniferous evergreen trees with long, flat, spirally arranged needles that grow directly from the branch.

Branch junctions and the flow of water through xylem in Douglas-fir and ponderosa pine stems. (1/37)

Water flowing through the xylem from the roots to the leaves of most plants must pass through junctions where branches have developed from the main stem. These junctions have been studied as both flow constrictions and components of a hydraulic segmentation mechanism to protect the main axes of the plant. The hydraulic nature of the branch junction also affects the degree to which branches interact and can respond to changes in flow to other branches. The junctions from shoots of two conifer species were studied, with particular emphasis on the coupling between the downstream branches. Flow was observed qualitatively by forcing stain through the junctions and the resulting patterns showed that flow into a branch was confined to just part of the subtending xylem until a considerable distance below the junction. Junctions were studied quantitatively by measuring flow rates in a branch before and after flow was stopped in an adjacent branch and by measuring the hydraulic resistance of the components of the junction. Following flow stoppage in the adjacent branch, flow into the remaining branch increased, but considerably less than predicted based on a simple resistance analogue for the branch junction that assumes the two branches are fully coupled. The branches downstream from a junction, therefore, appear to be limited in their interconnectedness and hence in their ability to interact.  (+info)

Ethanol synthesis and aerobic respiration in the laboratory by leader segments of Douglas-fir seedlings from winter and spring. (2/37)

Stem segments from terminal leaders of Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, seedlings were sampled in mid-December when cambial cells were dormant. The residual, debudded leaders were resampled again in early May when the cambium was metabolically active. May stems had higher constitutive ethanol concentrations than December stems. This was not the result of cambial hypoxia generated by rapid spring respiration rates, because when aerobic respiration was stimulated by incubating the stems in air at 30 degrees C ethanol production was induced in December, but not in May. Rapid respiration rates at 30 degrees C may have depleted O(2) supplies and induced ethanol production in December stems because dormant, thick-walled cambial cells may be less permeable to CO(2) and O(2), compared with metabolically active, thin-walled cambial cells in May. December stem segments incubated in a N(2) atmosphere at 30 degrees C synthesized 1.8 times more ethanol than segments from May, most likely because spring growth had reduced the soluble sugars available for fermentation. CO(2) efflux from May stems (after 5.5 h of incubation at 30 degrees C) was equal to December stems per unit volume, but greater than December stems per unit surface area. N(2)-induced ethanol concentrations were positively related with CO(2) efflux per unit volume, indicating that rapidly respiring leaders can maintain rapid fermentation rates, provided soluble sugars are readily available. N(2)-induced ethanol and CO(2) efflux per unit volume declined with increasing leader diameter in both seasons, whereas there were no relationships between CO(2) efflux per unit surface area and diameter. Cambium physiology and phenology influence the induction of fermentation and concentrations of ethanol produced in terminal leaders of Douglas-fir, and probably other conifers as well. This needs to be considered when comparing fermentation among species, or comparing individuals from different seasons, or disparate ages within a species.  (+info)

Methyl jasmonate-induced ethylene production is responsible for conifer phloem defense responses and reprogramming of stem cambial zone for traumatic resin duct formation. (3/37)

Conifer stem pest resistance includes constitutive defenses that discourage invasion and inducible defenses, including phenolic and terpenoid resin synthesis. Recently, methyl jasmonate (MJ) was shown to induce conifer resin and phenolic defenses; however, it is not known if MJ is the direct effector or if there is a downstream signal. Exogenous applications of MJ, methyl salicylate, and ethylene were used to assess inducible defense signaling mechanisms in conifer stems. MJ and ethylene but not methyl salicylate caused enhanced phenolic synthesis in polyphenolic parenchyma cells, early sclereid lignification, and reprogramming of the cambial zone to form traumatic resin ducts in Pseudotsuga menziesii and Sequoiadendron giganteum. Similar responses in internodes above and below treated internodes indicate transport of a signal giving a systemic response. Studies focusing on P. menziesii showed MJ induced ethylene production earlier and 77-fold higher than wounding. Ethylene production was also induced in internodes above the MJ-treated internode. Pretreatment of P. menziesii stems with the ethylene response inhibitor 1-methylcyclopropene inhibited MJ and wound responses. Wounding increased 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase protein, but MJ treatment produced a higher and more rapid ACC oxidase increase. ACC oxidase was most abundant in ray parenchyma cells, followed by cambial zone cells and resin duct epithelia. The data show these MJ-induced defense responses are mediated by ethylene. The cambial zone xylem mother cells are reprogrammed to differentiate into resin-secreting epithelial cells by an MJ-induced ethylene burst, whereas polyphenolic parenchyma cells are activated to increase polyphenol production. The results also indicate a central role of ray parenchyma in ethylene-induced defense.  (+info)

Multinucleate storage cells in Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and the effect of seed parasitism by the chalcid Megastigmus spermotrophus Wachtl. (4/37)

Megagametophytes of Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) accumulated storage products following fertilization. As megagametophytes matured, the number of nuclei per cell rose, resulting in syncytial storage cells. Studies carried out on trees in France and Canada confirmed that such previously unreported, free nuclear cells were a normal part of late megagametophyte development. Unfertilized megagametophytes showed that some binucleate cells before degeneration resulted in empty seed. Insect parasitism prevented megagametophyte abortion in unfertilized ovules. Oviposition by a torymid chalcid wasp (Megastigmus spermotrophus Wachtl) early in megagametophyte development resulted in normal megagametophyte development. Around the time of plant egg maturation, binucleate and trinucleate cells were observed. As megagametophytes matured, multinucleate mature storage cells rich in proteins, lipids and starch were formed. The insect was able to induce identical nuclear behaviour in infested, unfertilized megagametophytes, as that of uninfested, fertilized megagametophytes.  (+info)

Seed parasitism redirects ovule development in Douglas fir. (5/37)

Many parasitic species of insects complete their entire development in seeds. They feed off storage reserves within the ovule. These reserves only normally accumulate in fertilized ovules. Consequently, female insects that oviposit their eggs directly into the plant ovule need to be able to select correctly, as unfertilized ovules of conifers normally become so-called empty seed. We provide clear evidence that in conifers, seed-parasitizing insects do not need to discriminate between fertilized and unfertilized plant ovules when ovipositing their eggs. A host-specific insect, the chalcid Megastigmus spermotrophus Wachtl (Hymenoptera: Torymidae), lays its eggs in ovules of Douglas fir (Pseudotsuga menziesii (Mirbel) Franco) before fertilization has taken place in the plant. Oviposition not only prevents the expected degeneration and death of unfertilized ovules, but it induces energy reserve accumulation. Ovules that would otherwise develop as empty seed are redirected in their development by the insect to provide food for the developing larvae. Instead of the insect exploiting normal events during seed development, the insect manipulates seed development for its own reproductive advantage.  (+info)

Storage versus substrate limitation to bole respiratory potential in two coniferous tree species of contrasting sapwood width. (6/37)

Two coniferous tree species of contrasting sapwood width (Pinus ponderosa L., ponderosa pine and Pseudotsuga menziesii Mirb., Douglas-fir) were compared to determine whether bole respiratory potential was correlated with available storage space in ray parenchyma cells and/or respiratory substrate concentration of tissues (total nitrogen content, N; and total non-structural carbohydrate content, TNC). An increment core-based, laboratory method under controlled temperature was used to measure tissue-level respiration (termed respiratory potential) from multiple positions in mature boles (>100-years-old). The most significant tissue-level differences that occurred were that N and TNC were two to six times higher for inner bark than sapwood, TNC was about two times higher in ponderosa pine than Douglas-fir and there was significant seasonal variation in TNC. Ray cell abundance was not correlated with sapwood respiratory potential, whereas N and TNC often were, implying that respiratory potential tended to be more limited by substrate than storage space. When scaled from cores to whole boles (excluding branches), potential net CO2 efflux correlated positively with live bole volume (inner bark plus sapwood), live bole ray volume, N mass, and TNC mass (adjusted R2 > or =0.4). This relationship did not differ between species for N mass, but did for live bole volume, live bole ray volume, and TNC mass. Therefore, N mass appeared to be a good predictor of bole respiratory potential. The differences in net CO2 efflux between the species were largely explained by the species' relative amounts of whole-bole storage space or substrate mass. For example, ponderosa pine's inner bark was thinner than Douglas-fir's, which had the greater concentration of ray cells and TNC compared with the sapwood. This resulted in ponderosa pine boles having 30-60% less ray volume and 10-30% less TNC mass, and caused ponderosa pine net CO2 efflux/ray volume and net CO2 efflux/TNC mass to be 20-50% higher than Douglas-fir. In addition, because inner bark respiratory potential was 2-25 times higher than that of sapwood, ponderosa pine's thinner inner bark and deeper sapwood (relative to Douglas-fir) caused its bole net CO2 efflux/live bole volume to be 20-25% lower than that of similarly-sized Douglas-fir trees.  (+info)

Nucleotide diversity and linkage disequilibrium in cold-hardiness- and wood quality-related candidate genes in Douglas fir. (7/37)

Nuclear sequence variation and linkage disequilibrium (LD) were studied in 15 cold-hardiness- and 3 wood quality-related candidate genes in Douglas fir [Pseudotsuga menziesii (Mirb.) Franco]. This set of genes was selected on the basis of its function in other plants and collocation with cold-hardiness-related quantitative trait loci (QTL). The single-nucleotide polymorphism (SNP) discovery panel represented 24 different trees from six regions in Washington and Oregon plus parents of a segregating population used in the QTL study. The frequency of SNPs was one SNP per 46 bp across coding and noncoding regions on average. Haplotype and nucleotide diversities were also moderately high with H(d) = 0.827 +/- 0.043 and pi = 0.00655 +/- 0.00082 on average, respectively. The nonsynonymous (replacement) nucleotide substitutions were almost five times less frequent than synonymous ones and substitutions in noncoding regions. LD decayed relatively slowly but steadily within genes. Haploblock analysis was used to define haplotype tag SNPs (htSNPs). These data will help to select SNPs for association mapping, which is already in progress.  (+info)

Genecology of Douglas fir in western Oregon and Washington. (8/37)

BACKGROUND AND AIMS: Genecological knowledge is important for understanding evolutionary processes and for managing genetic resources. Previous studies of coastal Douglas fir (Pseudotsuga menziesii var. menziesii) have been inconclusive with respect to geographical patterns of variation, due in part to limited sample intensity and geographical and climatic representation. This study describes and maps patterns of genetic variation in adaptive traits in coastal Douglas fir in western Oregon and Washington, USA. METHODS: Traits of growth, phenology and partitioning were measured in seedlings of 1338 parents from 1048 locations grown in common gardens. Relations between traits and environments of seed sources were explored using regressions and canonical correlation analysis. Maps of genetic variation as related to the environment were developed using a geographical information system (GIS). KEY RESULTS: Populations differed considerably for adaptive traits, in particular for bud phenology and emergence. Variation in bud-set, emergence and growth was strongly related to elevation and cool-season temperatures. Variation in bud-burst and partitioning to stem diameter versus height was related to latitude and summer drought. Seedlings from the east side of the Washington Cascades were considerably smaller, set bud later and burst bud earlier than populations from the west side. CONCLUSIONS: Winter temperatures and frost dates are of overriding importance to the adaptation of Douglas fir to Pacific Northwest environments. Summer drought is of less importance. Maps generated using canonical correlation analysis and GIS allow easy visualization of a complex array of traits as related to a complex array of environments. The composite traits derived from canonical correlation analysis show two different patterns of variation associated with different gradients of cool-season temperatures and summer drought. The difference in growth and phenology between the westside and eastside Washington Cascades is hypothesized to be a consequence of the presence of interior variety (P. menziessii var. glauca) on the eastside.  (+info)

"Pseudotsuga" is not a medical term. It is a genus of coniferous trees in the family Pinaceae, commonly known as Douglas firs or Douglas trees. They are native to western North America and eastern Asia. The most widely known species is Pseudotsuga menziesii, which is often simply called the Douglas fir. These trees have important economic value for timber and pulp production.

Japanese Douglas-fir Pseudotsuga sinensis Dode Chinese Douglas-fir Pseudotsuga sinensis var. sinensis Pseudotsuga sinensis var ... Pseudotsuga macrocarpa (Vasey) Mayr bigcone Douglas-fir - southern California Pseudotsuga menziesii (Mirb.) Franco - western ... menziesii coast Douglas-fir Pseudotsuga menziesii var. glauca (Beissn.) Franco Rocky Mountain Douglas-fir Pseudotsuga menziesii ... Wikimedia Commons has media related to: Pseudotsuga (category) Gymnosperm Database - Pseudotsuga Arboretum de Villardebelle: ...
... var. wilsoniana, Taiwan Douglas-fir, is sometimes treated as its own species, Pseudotsuga wilsoniana. This ... Pseudotsuga sinensis (Chinese Douglas-fir; in Chinese 黃杉, pinyin romanization: huáng shān) is a species of conifer in the ... "Pseudotsuga sinensis at Gymnosperm Database". The Gymnosperm Database. Luu, Nguyen Duc To; Thomas Ian, Philip (2004). Cay La ... "Pseudotsuga sinensis". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. ...
Media related to Pseudotsuga japonica at Wikimedia Commons Data related to Pseudotsuga japonica at Wikispecies v t e (Articles ... Pseudotsuga japonica, the Japanese Douglas-fir, is a species of conifer in the pine family, Pinaceae, that is endemic to Japan ... "Pseudotsuga japonica". Germplasm Resources Information Network. Agricultural Research Service, United States Department of ... Japanese calls this tree 'Togasawara (トガサワラ)'.[citation needed] Katsuki, T.; Luscombe, D.; Farjon, A. (2013). "Pseudotsuga ...
Some hybrids of Pseudotsuga macrocarpa (Bigcone Douglas-fir) × Pseudotsuga menziesii (Coast Douglas-fir) show promise for ... Media related to Pseudotsuga macrocarpa at Wikimedia Commons Calflora Conifers.org, Gymnosperm Database: Pseudotsuga macrocarpa ... Pseudotsuga macrocarpa typically grows from 15-30 m (49-98 ft) in height and 56-155 cm (1 ft 10 in - 5 ft 1 in) in trunk ... Pseudotsuga macrocarpa is a Douglas-fir. The name "bigcone spruce", though confusing as it is not a spruce species, is often ...
... is a moth of the family Yponomeutidae. It is found in North America, including Washington. Adults ... The larvae feed on Pseudotsuga menziesii. They mine the twigs and tips of their host plant. The larvae enter the twigs at a ...
... , commonly known as the Mexican Douglas-fir, is a conifer in the genus Pseudotsuga that is ... Data related to Pseudotsuga menziesii var. lindleyana at Wikispecies The Gymnosperm Database: Pseudotsuga lindleyana - Old ... Pseudotsuga lindleyana in Pseudotsuga menziesii var. glauca - New Classification v t e (Articles with short description, Short ... Pseudotsuga menziesii var. lindleyana is native to the Sierra Madre Occidental, Sierra Madre Oriental, and scattered mountains ...
C. Michael Hogan (2008). Douglas-fir: "Pseudotsuga menzesii", GlobalTwitcher.com, ed. N. Stromberg "Douglas-fir (Pseudotsuga ... Pseudotsuga menziesii var. lindleyana). Rocky Mountain Douglas-fir is most commonly treated as a variety (Pseudotsuga menziesii ... Pseudotsuga menziesii var. glauca, or Rocky Mountain Douglas-fir, is an evergreen conifer native to the interior mountainous ... USDA Plant Profile: Pseudotsuga menziesii var. glauca (Rocky Mountain Douglas-fir) Arboretum de Villardebelle - cone photos ...
"Pseudotsuga menziesii var. menziesii". www.fs.fed.us. Retrieved 2017-10-26. Agee, James K (1993). Fire Ecology Ecology of the ... Pseudotsuga menziesii var. menziesii, commonly known as Coast Douglas-fir, Pacific Douglas-fir, Oregon pine, or Douglas spruce ... "Pseudotsuga menziesii var. menziesii". Gymnosperm Database. Archived from the original on 2010-10-01. Retrieved March 17, 2013 ... Franklin, Jerry F.; DeBell, Dean S. (1988-05-01). "Thirty-six years of tree population change in an old-growth Pseudotsuga- ...
Pseudotsuga spp., Pseudotsuga menziesii, and Cupressus lindleyi can also be found. The arid and semi arid area can be found in ...
"Pseudotsuga menziesii ". Calflora. Berkeley, California: The Calflora Database. Lipscomb, Barney (1993). "Pseudotsuga menziesii ... Wikimedia Commons has media related to: Pseudotsuga menziesii (category) Conifers.org: Pseudotsuga menziesii Arboretum de ... The Douglas fir (Pseudotsuga menziesii) is an evergreen conifer species in the pine family, Pinaceae. It is native to western ... For this reason, the name is often written as Douglas-fir (a name also used for the genus Pseudotsuga as a whole). The specific ...
and Pseudotsuga sp.) but they did not give the best results. The chrysalis is about 35 millimetres (1.4 in) long, and the imago ...
Pseudotsuga menziesii var. glauca distribution map Archived September 21, 2011, at the Wayback Machine at Flora of North ... The Rocky Mountain Douglas-fir (Pseudotsuga menziesii var. glauca) comes near the eastern limit of its range at Calgary. ...
"Pseudotsuga menziesii var. menziesii". Gymnosperm Database. Richard, Terry (March 27, 2010). "Doerner Fir rises 327 feet into ... Other researchers have developed models of maximum height for Coast Douglas-fir (Pseudotsuga menziesii var. menziesii) trees ...
"Pseudotsuga menziesii var. menziesii". Gymnosperm Database. "The world's tallest known tropical tree has been found-and climbed ... Earle, Christopher J. "Pseudotsuga menziesii subsp. menziesii". Gymnosperm Database. Retrieved December 29, 2017. Matthews, ...
Douglas-fir (Pseudotsuga) is a host plant common to many species of the family, particularly of the genus Chionodes, which as a ... Data related to Gelechiidae at Wikispecies C. Michael Hogan (September 17, 2008). "Douglas-fir: Pseudotsuga menziesii". ...
Sadik Tuzun and Elizabeth Bent, 2006 Hogan, C. Michael (2008). "Douglas-fir: Pseudotsuga menziesii". globalTwitcher.com, ed. ...
Schar, Douglas (2015). "Douglas Fir, Pseudotsuga menziesii". Archives. Doctor Schar. Retrieved 2015-10-04. Kershaw, Linda (2000 ...
Pseudotsuga menziesii); copper beech (Fagus sylvatica 'Purpurea' ); lemon verbena (Backhousia citriodora); lemonwood/tarata ( ...
rotundus Pseudotsuga sinensis var. gaussenii Taxus cuspidata var. nana, Dwarf yew Torreya grandis var. jiulongshanensis Tsuga ...
"Gymnosperm Database: Pseudotsuga menziesii". Retrieved 2012-02-05. "Gymnosperm Database: Picea sitchensis". Retrieved 2012-02- ...
latifolia, Pseudotsuga menziesii var. glauca, Abies lasiocarpa, Tsuga heterophylla and Betula papyrifera. The larvae are twig ...
Simard, Suzanne; Bingham, Marcus A. (2012-03-01). "Ectomycorrhizal Networks of Pseudotsuga menziesii var. glauca Trees ...
Coast Douglas-fir (Pseudotsuga menziesii var. menziesii), western red cedar (Thuja plicata), bigleaf maple (Acer macrophyllum ...
The larvae feed on Pseudotsuga sinensis. tortricidae.com Catalogue of Eucosmini from China (Lepidoptera: Tortricidae) ...
Coast Douglas-fir (Pseudotsuga menziesii ssp. menziesii) is the predominant tree, occupying up to 70% of the forest cover. ... Pseudotsuga macrocarpa). Mixed coniferous forest Plant communities of California Temperate broadleaf and mixed forests in the ...
Pseudotsuga kinkelinii, needle leaves and cones. †Pseudotsuga sclereidea, two needle fragments, most like Pseudotsuga menziesii ... On the fossil history of Pseudotsuga Carr. (Pinaceae) in Europe by Lutz Kunzmann - Palaeobiodiversity and Palaeoenvironments 94 ...
Coast Douglas-firs (Pseudotsuga menziesii var. menziesii) are nearly always associated with redwoods, but in the north the ... Forest of Coast Douglas-firs Pseudotsuga menziesii subsp. menziesii Mixed evergreen forests are found just inland of the ... Characteristic trees include coast Douglas-fir (Pseudotsuga menziesii var. menziesii), canyon live oak (Quercus chrysolepis), ... Pseudotsuga menziesii var. menziesii), California sycamore (Platanus racemosa), coast live oak (Quercus agrifolia), and bigleaf ...
Coast Douglas-fir (Pseudotsuga menziesii subsp. menziesii) occurs in both mixed evergreen and montane forests. Lawson's cypress ...
The larvae feed on Pseudotsuga menziesii. Beccaloni, George; et al., eds. (February 2005). "Scientific name search". The Global ...
December 23, 2018), Pseudotsuga menziesii subsp. menziesii, Configers.org The Gymnosperm Database v t e v t e (Use mdy dates ... "Pseudotsuga menziesii (Mirbel) Franco" (PDF). Tree Factsheet. Wageningen University forest ecology and forest management group ...
Japanese Douglas-fir Pseudotsuga sinensis Dode Chinese Douglas-fir Pseudotsuga sinensis var. sinensis Pseudotsuga sinensis var ... Pseudotsuga macrocarpa (Vasey) Mayr bigcone Douglas-fir - southern California Pseudotsuga menziesii (Mirb.) Franco - western ... menziesii coast Douglas-fir Pseudotsuga menziesii var. glauca (Beissn.) Franco Rocky Mountain Douglas-fir Pseudotsuga menziesii ... Wikimedia Commons has media related to: Pseudotsuga (category) Gymnosperm Database - Pseudotsuga Arboretum de Villardebelle: ...
This cultivar is pyramidal in shape and has a golden color to its outer foliage. Needles are flat, soft and thin. This plant enjoys full sun and a moist,
Look no further than the Pseudotsuga menziesii var. glauca, also known as the Douglas Fir. Native to western North America, ... Pseudotsuga menziesii var. glauca AZ ApachePseudotsuga menziesii. var. glauca AZ Apache. ... Overall, the Pseudotsuga menziesii var. glauca is a stunning tree with its unique characteristics and adaptability. Whether you ... The Douglas Fir is often mistakenly referred to as a true fir, but it actually belongs to the genus Pseudotsuga. Its common ...
Plant Index: Plants in genus Pseudotsuga Pseudotsuga menziesii Albers Elegant Weeping aka Albers Elegant Weeping Douglas Fir ... Pseudotsuga menziesii Wycoff Big Blue aka Pseudotsuga menziesii Wycoffs Big Blue, Wycoffs Big Blue Douglas Fir ... Pseudotsuga menziesii Hess Select Blue aka Pseudotsuga menziesii Hess Select, Blue Douglas-Fir, Douglas Fir ... Pseudotsuga menziesii Weep Willie aka Pseudotsuga menziesii Weeping Willie, Weep Willie Douglas Fir ...
Pseudotsuga macrocarpa is an evergreen conifer tree with green foliage. It can grow 20 FT - 40 FT - wide 60 FT - 100 FT - tall ...
Résumé - Effet de la coupe à blanc dun peuplement de Douglas (Pseudotsuga menziesii F.) sur la composition chimique des ... Effects of the clear-cutting of a Douglas-fir plantation (Pseudotsuga menziesii F.) on the chemical composition of soil ...
Evaluation of some markers of vigor in seedlings of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco). J.B. Zaerr, V.D. ... Fertilization at planting impairs root system development and drought avoidance of Douglas-fir (Pseudotsuga menziesii) ...
Pseudotsuga menziesii "Nr 33". Pseudotsuga menziesii "Nr 42". Pseudotsuga menziesii "Nr 54". Pseudotsuga menziesii "Nr 70". ... Pseudotsuga menziesii "Wycoff s Big Blue". Pseudotsuga menziesii "Yahoo". Pseudotsuga menziesii "Ždirecky Dul". Pseudotsuga ... Pseudotsuga menziesii "Elegans". Pseudotsuga menziesii "Elf". Pseudotsuga menziesii "Eliška". Pseudotsuga menziesii "Elt WB". ... Pseudotsuga menziesii "Julie". Pseudotsuga menziesii "Kam Loops". Pseudotsuga menziesii "Kazin". Pseudotsuga menziesii "Kevy". ...
Pseudotsuga Menziesii Remedy packets (paper) include 35+ pellets, 2-Dram vials (glass) contain 250+ pellets. Remedy pellets are ...
... is an evergreen conifer that was named after David Douglas who sent the first seed back ... Pseudotsuga menziesii - Douglas Fir is an evergreen conifer that was named after David Douglas who sent the first seed back ... If protection is required for Pseudotsuga menziesii - Douglas Fir then you may wish to consider Tubex Treeguard which is an ... Pseudotsuga menziesii - Douglas Fir is an evergreen conifer that was named after David Douglas who sent the first seed back ...
Főkategória: Tűlevelű örökzöldek Nemzetség : Pseudotsuga - Duglászfenyő Faj: menziesii Az alábbi árak bruttó kiskereskedelmi ...
Pseudotsuga menziesii. Douglas fir. Plant Type: Tree. Sun: Partial Shade, Sun. Drainage: Adaptable. Water: Occasional. Height X ...
Pseudotsuga macrocarpa is an evergreen tree with a broadly conical crown; it usually grows up to 25 metres tall, exceptionally ... Pseudotsuga macrocarpa is perfectly suitable for amenity planting and as a specimen tree in gardens and parks in milder ... Pseudotsuga macrocarpa grows in southern California, where the climate is warm temperate, with cool, moist winters and warm, ...
Pseudotsuga menziesii (aka Douglas Fir). Tree, conifer for bright shade - sun in zone 4a - 9b. Grows 15 FT - 20 FT - wide, 50 ... Pseudotsuga ALL KNOWN NAMES: Pseudotsuga menziesii Dougl ...
UW Burke Herbarium Link: Pseudotsuga menziesii var. glauca. USDA Plants Link: Pseudotsuga menziesii var. glauca (PSMEG). Flora ... Pseudotsuga menziesii var. glauca Douglas-fir. Pinaceae. native woody Distribution: Conifer Zone. ...
Walking through Pier Park you will find yourself under a canopy of Douglas Fir, the second tallest trees in the world and the Oregon State tree.
... ... Ravaioli, Dario (2018) Disentangling the effects of age and global change on Pseudotsuga menziesii (Mirb.) Franco growth and ... Pseudotsuga menziesii, BAI, iWUE, long-term trends, global change, GAMs, isotope dual approach. ... Pseudotsuga menziesii, BAI, iWUE, long-term trends, global change, GAMs, isotope dual approach. ...
Pseudotsuga menziesii The Douglas fir is a native of North West America. They have been known to live for over 1000 years and ...
Pseudotsuga menziesii Out on a Limb Douglas Fir Plant Size:. #1 Container. ...
Home 〉 Pictorial Guide 〉 Pinaceae 〉 Pseudotsuga menziesii / Douglas fir. Pseudotsuga menziesii (Mirb.) Franco. Douglas fir ( ... Pseudotsuga menziesii is native to western North America, but is widely planted elsewhere; the species includes the tallest ...
Genus - Pseudotsuga. Species - Chinensis. Common name - Chinese Douglas Fir. Pre-Treatment - Required. Hardiness zones - 7 - 10 ... Pseudotsuga sinensis is a species of conifer in the Pinaceae family. It is found in China (in Anhui, Fujian, Guangxi, Guizhou, ... Buy online Pseudotsuga Chinensis 20 seeds from HobbySeeds ... Home » Chinese Douglas Fir (Pseudotsuga Chinensis) 20 seeds. ...
Pseudo-Tsuga. Photo: Greg Heil. Pseudo-Tsuga. Photo: Greg Heil. Pseudo-Tsuga. Photo: Greg Heil. Pseudo-Tsuga. Photo: Greg Heil ... Pseudo-Tsuga is a top-tier flow trail that has held up exceedingly well to its fame and subsequent traffic over the years. This ... This flow trail ride combining Meadow of the Grizzly and Pseudo-Tsuga really drives home just how hard Squamish has worked to ... Meadow of the Grizzly -, Pseudo-Tsuga Loop. Squamish. A stunning intermediate flow trail of epic proportions! ...
Pseudotsuga menziesii. QUIM. Quercus imbricaria. QURO. Quercus robur. SOAU. Sorbus aucuparia. THOC. Thuja occidentalis. ULRU. ...
Finally, it was recognized as a species different from the coastal Pseudotsuga menziesii s.str.: Pseudotsuga glauca (Beissn., ... Next Higher Taxon: Pseudotsuga Carri re Trait g n ral des conif res 1: 256. 1867. ANNOUNCEMENT: COURSE ON MULTIVARIATE ANALYSIS ... Pseudotsuga menziesii var. glauca (Mayr) Franco Group - Gymnosperm - Family - PINACEAE - Pine Family Published in: Boletim da ... Next Higher Taxon: Pseudotsuga menziesii (Mirb.) Franco Boletim da Sociedade Broteriana, ser. 2 24: 74. 1950. Later it was ...
Pseudotsuga menziesii (Pinophyta (conifer)). n, Welwitschia mirabilis (Gnetophyta). o, Bulnesia arborea (Angiospermae, eudicot ...
Pseudotsuga menziesii), on West Beach Trail, Deception Pass State Park, Whidbey Island, Washington, USA. In this scenic park, ... Old Douglas Fir tree / Pseudotsuga menziesii. Deception Pass State Park, Whidbey Island, Washington, USA.. Ancient, twisted, ... 850-year-old Douglas Fir tree (Pseudotsuga menziesii), on West Beach Trail, Deception Pass State Park, Whidbey Island, ...
First, the effect of thinning, fertilizing and pruning on tree vigor of four young Douglas-fir (Pseudo tsuga menziesii var. ... Pruning young Douglas-fir (Pseudotsuga menziesii [mirb.] Franco) in a western Oregon agroforestry setting : changes in tree ...
Pseudotsuga menziesii var. glauca). quaking aspen 7-80. (Populus tremuloides). chamise2-90. (Adenostoma fasciculatum). POSTFIRE ... In Eastern Oregon and Washington common associates are ponderosa pine (Pinus ponderosa), Douglas-fir (Pseudotsuga menziesii), ...
Evaluating the role of active management in mature Douglas-fir (Pseudotsuga menziesii) stands for songbird conservation Forest ... Evaluating the role of active management in mature Douglas-fir (Pseudotsuga menziesii) stands for songbird conservation Forest ...

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